BMW S38 Cut Ring Head Gasket by Athena-SCE Bore Size - Thickness:95.6 mm - 0.079" The parts in the kit

The parts in the kit disable the built-in regulator allowing the use of an external regulator elsewhere in the system

and M4 models

More bore and thickness variations available here

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Logging & Communication: 512MB of data logging

BMW S38 Cut Ring Head Gasket by Athena-SCE Bore Size - Thickness:95.6 mm - 0.079" The parts in the kitThis S38 Head Gasket is designed to replace BMW part numbers 11121316705, 11121307529, and 11121401351, specifically for the BMW S38B35, S38B36, and S38B38 engines found in the E24, E28, and E34 M5 and M6 chassis. Factory OEM & MLS head gaskets are only engineered to handle a limited amount of cylinder pressures before they start to leak, causing a range of issues, including engine overheating, loss of power, misfires, and in severe cases,